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which stow inside the left and right sides of the partition. The doors do
not lock and are equipped with a magnetic strip which holds them
together while closed. The toilet is located on the right side of the
lavatory compartment. The toilet is flushed by depressing the toilet
FLUSH switch, located in the contact pad on the forward side of the
toilet. The optional sink is located at the aft end of the lavatory. The
water faucet is operated by depressing the PUMP button located on the
vanity adjacent to the basin to dispense running water. Water in the
basin is drained by depressing the DRAIN button which is located next
to the PUMP button.
If equipped with the optional sink, the lavatory/vanity will have a
potable water tank and pump located under the vanity counter. The
potable water tank (with an internal heater) holds approximately 1.5
gallons of 100° F heated water. The pump and tank (with heater) draw
electrical power from the 15-amp LAV SINK circuit breaker located on
the pilot’s circuit breaker panel. The lavatory sink is drained through a
heated drain mast on the bottom of the aircraft. The heater prevents ice
from forming in the drain mast.
Pilot’s Manual
PM-126A 7-41
LAVATORY/VANITY (TYPICAL)
(Aircraft 45-002 thru 45-231, 45-233 thru 45-235)
Figure 7-18
VIEW LOOKING AFT
VIEW LOOKING FORWARD
Vanity
Toilet
Partition
Mirror
Pump and Drain
Water Control
Vanity
Toilet Paper
Aft Cabin Stowage
Area
Toilet Lid/Cover
Warm Water
Sliding Faucet
Door
Switches
Lavatory Control Unit/Flush
Partition
Toilet
L/H FLUSH
SPOT
R/H
SPOT
LAV
LIGHT
Lavatory Control Unit
Drawer
Trash/Storage
Drawer
Life Vest Storage
Contact Pad
Switch
In Side Cushion
(not shown)
Pilot’s Manual
7-42 PM-126A
Toilet
A flushing toilet is installed on the right side of the lavatory
compartment. The unit features a two compartment design which
isolates the flushing fluid from the waste. The toilet is flushed by
depressing the FLUSH button located on the lavatory control unit in
the contact pad immediately forward of the toilet (see Figure 7-18). The
length of the flush cycle is controlled automatically. There are two
electric pumps installed inside the unit. The flushing pump circulates
the flushing fluid during the flush cycle. The macerator/pump is used
to pump the waste from the toilet during servicing only.
This toilet is equipped with a macerator pump which has the capability
to process regular toilet paper. It is not necessary to use the special
biodegradable toilet paper in this toilet.
Servicing of the toilet is accomplished using servicing ports located on
the aircraft exterior. The macerator/pump is used to pump the waste
from the toilet while fresh flushing fluid is pumped into the toilet from
the servicing equipment. Refer to Chapter 12 in the maintenance
manual for servicing instructions.
Electrical power to operate the flushing circuit is 28-vdc supplied
through the 3-amp TOILET circuit breaker on the copilot’s circuit
breaker panel.
Pilot’s Manual
PM-126A 7-43
LAVATORY/VANITY
(Aircraft 45-232, 45-236 thru 45-2000)
The standard lavatory/vanity (Figure 7-19) is equipped with a toilet, a
vanity counter, a toilet tissue drawer and a trash/storage drawer.
Optional equipment for the standard vanity includes a belted toilet
with a life vest, a lighted vanity mirror and a wash basin with warm
running water plumbed to an overboard heated drain.
The lavatory is separated from the passenger cabin by sliding doors
which stow inside the left and right sides of the partition. The doors do
not lock and are equipped with a magnetic strip which holds them
together while closed. The toilet is located on the right side of the
lavatory compartment. The toilet is flushed by depressing the toilet
FLUSH switch, located in the lavatory switch panel on the forward side
of the toilet. The sink is located at the aft end of the lavatory. The water
faucet is operated by depressing the PUMP switch located on the lavatory
switch panel adjacent to the basin to dispense running water. Water
in the basin is drained by depressing the DRAIN button which is
also on the lavatory switch panel.
If equipped with the optional sink, the lavatory/vanity will have a
potable water tank and pump located under the vanity counter. The
potable water tank (with an internal heater) holds approximately
1.5 gallons of 100° F heated water. The pump and tank (with heater)
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